I'm trying to configure NHRP for DMVPNs, but I get the following error:
% WARNING: This interface is running CEF:
NHRP will only work on a CEF interface in case
it's an ATM interface running BGP as well
Platform is a cisco 7206 (non-VXR) running c7200-jk8o3s-mz.122-40.bin.
Configuration looks like this:
ip address 22.214.171.124 255.255.255.0
no ip redirects
no ip proxy-arp
ip mtu 1464
ip nhrp authentication xxx
ip nhrp network-id 1000
ip nhrp holdtime 20
ip nhrp server-only
ip route-cache flow
no ip route-cache cef
no ip mroute-cache
tunnel source FastEthernet1/0
tunnel mode gre multipoint
tunnel key xxxx
If I disable cef (no ip cef) globally the warning disappears, but I don't think this is a good solution. Disabling cef on the interface level still gives the warning.
So can I ignore this warning? NHRP _seems_ to work, but I'm currently only testing this in a lab and I'm a bit afraid if there could be some problems in production enviroment.